🔧 Grand Cherokee - Fuel Cap Replacement

Replacing the fuel cap is quick and simple. A loose, damaged, or missing cap can trigger an EVAP leak warning and may turn on the check engine light.

Difficulty Level: Beginner | Estimated Time: 0.1-0.2 hours

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⚠️ Safety & Precautions

• Work with the engine off and the vehicle parked on level ground.
• Do not smoke or work near open flames.
• Make sure the fuel filler neck and cap sealing surface are clean before installing the new cap.
• No battery disconnect is required.

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🔧 Required Tools

You'll need the following tools for this repair:

• Microfiber towel
• Flashlight
• Gloves

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🔩 Required Parts

HowToo sells all the parts you need for this repair:

• Fuel cap - Qty: 1

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📋 Before You Begin

• Park on level ground and shut the ignition off.
• Open the fuel door and check the old cap and filler neck for dirt, cracks, or a damaged seal.
• If the check engine light is already on, it may take a few drive cycles to clear after the repair.

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🔨 Step-by-Step Instructions

Follow these steps in order:

Step 1: Remove the old cap

• Use your hand to turn the fuel cap counterclockwise until it releases.
• Pull the cap away from the filler neck.
• If the cap is stuck, wipe around it with a microfiber towel and try again.

Step 2: Inspect the filler neck

• Use a flashlight to check the filler neck sealing surface for dirt, rust, or damage.
• Wipe the sealing area clean with a microfiber towel.
• Do not use harsh cleaners.

Step 3: Install the new cap

• Place the new fuel cap on the filler neck and turn it clockwise by hand.
• Keep turning until you hear or feel several clicks.
• The cap must be fully tightened to seal the EVAP system properly.

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✅ After Repair

• Start the vehicle and make sure the fuel door closes properly.
• Check the instrument cluster for any fuel cap or check engine warning.
• If the light was on before, it may go out after several normal drive cycles.
• If the warning remains, the EVAP system may need diagnosis.

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💰 DIY vs Shop Cost

Shop Cost: $60-$140 (parts + labor)

DIY Cost: $15-$35 (parts only)

You Save: $45-$105 by doing it yourself!

Shop labor rates vary but typically run $100-$150/hour. This repair takes a shop approximately 0.1-0.2 hours.

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🎯 Ready to get started?

HowToo makes it easy: same-day/2-day shipping on every part, plus all the tools and specialty tools you need! Check out the parts and tools sections below to add everything to your cart.